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8 May, 03:43

How many times louder is the intensity of

sound at a rock concert in comparison with

that of a whisper, if the two intensity levels

are 130 dB and 2 dB, respectively?

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Answers (1)
  1. 8 May, 05:40
    0
    Answer: the intensity of sound at a rock concert will be 6.31 * 10^12 time louder than that of a whisper.

    Explanation: Given that sound at a rock concert power is 130 dB of intensity l2

    a whisper power is 2 dB of intensity l1

    Using the formula

    130dB - 2dB = 10Log (I2/I1)

    128/10 = logI2/I1

    12.8 = log (I2/I1)

    I2/I1 = 6.31 * 10^12

    Therefore, the intensity of sound at a rock concert will be 6.31 * 10^12 time louder than that of a whisper.
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